The practice of perseverance is the discipline of the noblest
virtues. To run well, we must run to the end. It is not the
fighting but the conquering that gives a hero his title to
renown.
- Elias L. Magoon

Want of perseverance is the great fault of women in
everything--morals, attention to health, friendship, and so on.
It cannot be too often repeated that women never reach the end of
anything through want of perseverance.
- Madame Suzanne Curchod Necker

Perseverance is more prevailing than violence; and many things
which cannot be overcome when they are together, yield themselves
up when taken little by little.
- Plutarch

Water continually dropping will wear hard rocks hollow.
- Plutarch, Of the Training of Children

The drop hollows out the stone not by strength, but by constant
falling.
[Lat., Gutta cavat lapidem non vi, sed saepe cadendo.]
- prob. first used by Richard,
quoted in the "Menagiana", 1713

Even if a minefield or the abyss should lie before me, I will
march straight ahead without looking back.
- Zhu Rongji